Gas turbine catalyst combustion system
专利汇可以提供Gas turbine catalyst combustion system专利检索，专利查询，专利分析的服务。并且PURPOSE: To enable a stable combustion with a low NOx to be attained with high combustion efficiency without being influenced by the deterioration of performance of catalyst by a method wherein a pre-mixing partial combustion is carried out with a main fuel, a not-yet combustion processing is performed at a catalyst combustion region and concurrently a low NOx is attained under a reducing action and the number of operating pre-mixing devices is increased or decreased in response to a variation of load.
CONSTITUTION: Pre-mixing gas supplied from pre-mixing devices 8
1 to 8
6 performs a pre-mixing partial combustion at a pre-mixing combustion region (a). At this time, a temperature of the combustion gas at an outlet of the pre-mixing combustion region is restricted to 700 to 1,000°C and an amount of discharged NOx is restricted to a low value. Not-yet ignited substances such as a small amount of CO and HC generated under an aforesaid combustion temperature are completely ignited while passing through a catalyst container 11 storing catalyst therein. In turn, as the load is varied, supplying valves 23
1 to 23
6 are controlled and the number of main fuel injection nozzles 9 for use in injecting the main fuel is controlled. At this time, the number of released supplying valves 23
1 to 23
6 is controlled in such a way as an equivalent ratio of the pre-mixed gas ϕ is within a range of 0.35 to 0.7. With such arrangement, a combustion with low NOx is maintained and at the same time a high combustion efficiency can be maintained.
COPYRIGHT: (C)1991,JPO&Japio，下面是Gas turbine catalyst combustion system专利的具体信息内容。
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10 排気浄化システム
